--- product_id: 129484336 title: "ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon" brand: "echosari" price: "£51.72" currency: GBP in_stock: false reviews_count: 5 url: https://www.desertcart.co.uk/products/129484336-echo-ms-402-internal-piston-pump-backpack-sprayer-4-gallon store_origin: GB region: United Kingdom --- # 4 adjustable nozzles for precision 4 Gallon capacity tank Viton seals resist harsh chemicals ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon **Brand:** echosari **Price:** £51.72 **Availability:** ❌ Out of Stock ## Summary > 🌿 Spray smarter, not harder — gear up like a pro! ## Quick Answers - **What is this?** ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon by echosari - **How much does it cost?** £51.72 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/129484336-echo-ms-402-internal-piston-pump-backpack-sprayer-4-gallon) ## Best For - echosari enthusiasts ## Why This Product - Trusted echosari brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless refilling:** Extra-large tank opening with integrated handle and fine mesh filter for quick, mess-free filling - • **Ergonomic comfort design:** Heavy-duty padded shoulder straps plus waist belt for all-day wear without fatigue - • **Precision spraying control:** Fiberglass wand with 4 adjustable nozzles and industrial flow control for tailored application - • **Professional-grade durability:** Viton-sealed piston pump built to handle harsh chemicals and bleach safely - • **Versatile liquid compatibility:** Works seamlessly with liquids, powders, and water-soluble tablets for every gardening need ## Overview The ECHO MS-402 is a 4-gallon professional-grade backpack sprayer featuring a Viton-sealed piston pump designed to withstand harsh chemicals including bleach. It offers precision spraying with a fiberglass wand and 4 adjustable nozzles, combined with ergonomic padded straps and a waist belt for comfortable all-day use. Its extra-large tank opening with integrated handle and fine mesh filter ensures easy refills, making it ideal for liquids, powders, and water-soluble tablets. ## Description The ECHO 4 Gallon Internal Piston-Pump Backpack Sprayer features a large tank opening with a fine mesh filter. The heavy-duty, padded shoulder straps and tank are designed to fit your back to help provide comfortable carrying. The durable wand with comfort grip flow control and features 4 nozzles for stream adjustment. Review: Much nicer than pump bottle - I had not used a backpack sprayer and this was recommended to me by a professional who has "tried them all." It loads from the top so it doesn't leak and you pressurize it with the left hand as you go along. Apparently, the harness clips will slide out if you hoist it like a backpack. I have not experienced it yet as I sat in front of it to put it on. Review: Handle leaks - Handle leaks ## Features - Professional grade piston pump equipped with Viton seals to withstand harsh chemicals, this pump is designed for use with liquids, powders and water soluble tablets, safe for use with bleach - Professional grade fiberglass wand and industrial grade flow control with comfort grip - Extra large tank opening with handle integrated into the tank cap - Heavy duty padded straps with waist belt ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01B7AW8BK | | Brand | echosari | | Brand Name | echosari | | Color | Red, Black | | Customer Reviews | 4.3 out of 5 stars 26 Reviews | | Included Components | 1 x Pump, 1 x Hose | | Manufacturer | Echo | | Material | Mesh | | Material Type | Mesh | | Maximum Pressure | 150 Pound per Square Inch | | Model Number | MS-402 | | Power Source | Manual | | Recommended Uses For Product | Garden sprayer, Pest Control | | Style | Knapsack | | Style Name | Knapsack | | Tank Volume | 4 Gallons | | UPC | 026156913674 | ## Product Details - **Brand:** echosari - **Tank Volume:** 4 Gallons - **Color:** Red, Black - **Recommended Uses For Product:** Garden sprayer, Pest Control - **Material:** Mesh ## Images ![ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon - Image 1](https://m.media-amazon.com/images/I/51FHpv84AAL.jpg) ![ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon - Image 2](https://m.media-amazon.com/images/I/71hPhWG+ZbL.jpg) ![ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon - Image 3](https://m.media-amazon.com/images/I/71kw-0O6w2L.jpg) ![ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon - Image 4](https://m.media-amazon.com/images/I/51cubH7txqL.jpg) ![ECHO MS-402 Internal Piston-Pump Backpack Sprayer 4 Gallon - Image 5](https://m.media-amazon.com/images/I/51seuTHIaAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Much nicer than pump bottle *by T***L on September 24, 2021* I had not used a backpack sprayer and this was recommended to me by a professional who has "tried them all." It loads from the top so it doesn't leak and you pressurize it with the left hand as you go along. Apparently, the harness clips will slide out if you hoist it like a backpack. I have not experienced it yet as I sat in front of it to put it on. ### ⭐⭐⭐ Handle leaks *by R***K on June 21, 2019* Handle leaks ### ⭐⭐ STRAPES KEEP FALLING OFF *by J***Y on September 7, 2021* STREAPES KEEP FALLING OFF --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/129484336-echo-ms-402-internal-piston-pump-backpack-sprayer-4-gallon](https://www.desertcart.co.uk/products/129484336-echo-ms-402-internal-piston-pump-backpack-sprayer-4-gallon) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-21*